phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'df0c39b96c63ea2f133c1937d04f91c0' for key 'PRIMARY'

INSERT INTO phpbb_Alfa_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('df0c39b96c63ea2f133c1937d04f91c0', -1, 1711639859, 1711639859, '2cc8276e', -4, 0, 0)

Line : 189
File : sessions.php